Challenge:
Now remote_ks_admin and remote_rgw_user are using for user labels
of backup target openstack cloud.
When the backup user doesn't exist and we can enable job_ks_user
manifest.
But job_ks_user uses .Vaules.secrets.identity.admin and mariadb,
while secret-rgw and cron-job-backup-mariadb use .Values.secrets.
identity.remote_ks_admin and remote_rgw_user.
It requires to use same values for admin and remote_ks_admin,
and for mariadb and remote_rgw_user.
Seems it isbreaking values consistency.
Suggestion:
Now providing 2 kinds of backup - pvc and swift.
"remote_" means the swift backup.
In fact, mariadb chart has no case to access to keystone except
swift backup. So we can remove remote_xx_* prefix and there is
no confusion.
Change-Id: Ib82120611659bd36bae35f2e90054642fb8ee31f